3 papers
stat.ML2026
Interaction Is Not Necessary for Order-Optimal 1-Bit Mean Estimation
Jiachen Hu, Han Zhong
This paper is concerned with one-bit mean estimation, where each independent sample is represented by a single binary message. We consider distributions on with mean i…
cs.LG2025
The Sample Complexity of Online Strategic Decision Making with Information Asymmetry and Knowledge Transportability
Jiachen Hu, Rui Ai, Han Zhong +4
Information asymmetry is a pervasive feature of multi-agent systems, especially evident in economics and social sciences. In these settings, agents tailor their actions based on pr…
math.MG2025
New Sphere Packings from the Antipode Construction
Ruitao Chen, Jiachen Hu, Binghui Li +2
In this note, we construct non-lattice sphere packings in dimensions , , , , , , and , demonstrating record densities that surpass all previously docume…